<%= form_for([@article, @article.comments.build]) do |f| %>
  <p>
     <%= f.label :commenter %><br>
     <%= f.text_field :commenter %><br>
  </p>
   <p>
     <%= f.label :body %><br>
     <%= f.text_area :body %><br>
   </p>
   <p>
     <%= f.submit %>
   </p>
<% end %>